XSS in Anothernote Anote
CVE-2021-47963
Anote 1.0 contains a persistent cross-site scripting vulnerability that allows attackers to execute arbitrary code by injecting malicious payloads into markdown files stored within the application. Attackers can craft malicious markdown files with embedded JavaScript that executes system commands when opened, enabling remote code execution on the victim's computer.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Anothernote Anote — versions 1.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49836 (exploit)
- github.com/AnotherNote/anote (product)
- www.vulncheck.com/advisories/anote-persistent-cross-site-scripting-remote-code-… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47963?
- CVE-2021-47963 is a high-severity vulnerability in Anothernote Anote, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-05-15.
- How severe is CVE-2021-47963?
- High severity. CVSS v3 base score is 7.2 out of 10.